About the Number 438 (four hundred thirty-eight)

438 was the smallest number without a nBAB on 8 May 2017.

MathBabbler Number Analyst (MBNA) output:
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438 is natural, counting, whole, integer
438 is even (not odd)
438 proper divisors are: 1,2,3,6,73,146,219,
438 has 7 proper divisors
438 is abundant (sum of divisors is 450; ratio: 1.0274)
438 is unhappy
438 is a Squarefree Number
438 is composite (not prime)
438 has the prime factors: 2*3*73 (sum=78)
438 is sphenic (has 3 unique prime factors)
438 is a joke (Smith) number
438 is a hoax number
438 is a 73-smooth number
438 is the sum of 16 consecutive primes
438 = 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47 + 53 + 59
438 in octal is 0666
438 in hexadecimal is 0x1b6
438 in binary is 110110110 (is evil)
438 nearest square numbers: -38...3 (400...441 [21])
sqrt(438) = 20.9284
ln(438) = 6.08222
log(438) = 2.64147
438! is 2.91465e+968
438 is 139.42 Pi years
438 is 21 score and 18 years
438 written as a Roman numeral is CDXXXVIII
438 is a multiple of 3 & it contains a 3 (A121023)
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438 reciprocal is 0.002283105
remainders: 
1,10,100,124,364,136,46,22,220,10

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 08 May 2017

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 United States License.